ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,695, issued on July 14, was assigned to Hitachi Ltd. (Tokyo).
"Testing method for unintended car movement protection device for elevators and unintended car movement protection device for elevators" was invented by Masaki Miyamae (Tokyo), Koichi Yamashita (Tokyo) and Jun Toriyabe (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A testing method for an unintended car movement protection device for an elevator, which can shorten the time required for performing the operation test, is disclosed. The testing method includes: moving a car to a position where a floor releveling operation is enabled; making an unintended car movement protection device...